At National Optometry we're eager to hear from you! If you have any concerns with your glasses or contact lenses, it is best to try to solve the problem at the office at which you were seen. However, if you prefer, you may contact us at the National Optometry bookkeeping office. We can be reached at (717) 593-4521 or by emailing nat_opt_dm@nato.hrcoxmail.com. Click Here to visit our locations page for directions and phone numbers!